EP 0325492 A1 19890726 - Osmotic system for delivery of dilute solutions.
Title (en)
Osmotic system for delivery of dilute solutions.
Title (de)
Osmotisches System zur Verabreichung von verdünnten Lösungen.
Title (fr)
Dispositif osmotique pour délivrer des solutions diluées.
Publication
Application
Priority
US 14718288 A 19880122
Abstract (en)
In a device (10) that is capable of providing a constant rate of delivery of beneficial agent at concentrations less than saturation, osmotic bodies (20) or diffusional bodies (30) containing the agent are contained within a reservoir (12) of the device. A saturated solution of the agent is delivered at a constant rate from the bodies (20, 30), and this solution is diluted at a constant rate by water diffusing into the device. The rate of agent delivery, the concentration of the agent solution delivered, the total dose of agent delivered, and the number of agents delivered from the same device may all be independently controlled.
IPC 1-7
IPC 8 full level
A61K 9/00 (2006.01); A61K 9/22 (2006.01); A61M 5/28 (2006.01); A61M 37/00 (2006.01); B01J 13/02 (2006.01)
CPC (source: EP)
A61K 9/0004 (2013.01)
Citation (search report)
[X] US 4278087 A 19810714 - THEEUWES FELIX
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0325492 A1 19890726; EP 0325492 B1 19920527; AT E76574 T1 19920615; CA 1330886 C 19940726; DE 68901619 D1 19920702; ES 2033085 T3 19930301; GR 3005289 T3 19930524; JP H025978 A 19900110
DOCDB simple family (application)
EP 89300582 A 19890123; AT 89300582 T 19890123; CA 588805 A 19890120; DE 68901619 T 19890123; ES 89300582 T 19890123; GR 920401619 T 19920729; JP 1101789 A 19890121